From 7223ce0511bbb83afd2795ff7b36ef6e0bc96911 Mon Sep 17 00:00:00 2001
From: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Date: Sat, 31 Dec 2022 20:52:02 +0100
Subject: [PATCH] Fix another serialize error

---
 mypy/types.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mypy/types.py b/mypy/types.py
index dd790fb43cb3..df697e2b4d63 100644
--- a/mypy/types.py
+++ b/mypy/types.py
@@ -794,6 +794,7 @@ def serialize(self) -> JsonDict:
             "id": self.id.raw_id,
             "upper_bound": self.upper_bound.serialize(),
             "tuple_fallback": self.tuple_fallback.serialize(),
+            "default": self.default.serialize(),
         }
 
     @classmethod